Is the solar water pipe 4 points or 6 points?

The 4 and 6 minute water pipe sizes refer to the diameter. The international application standard for metal piped water supply systems was established by the British Empire at its peak. Dimensions for this standard are based on inches. Pipe threads (threads) and fittings standards in the relevant standards are still used today and, in colloquial terms, "four-point pipe", "six-point pipe", "one-inch pipe", etc. are often used. .

Common specifications

1 foot = 12 inches, 1 inch = 8 cents.

Size conversion:

(1) 1 minute, 10 mm.

(2) 2 tips, 12 mm.

(3) 3 tips, 16 mm.

(4) 4 tips, 20 mm.

(5) 6 tips, 25 mm.

(6) 1 inch, 32 mm.

British Pipe Standards are based on the diameter of the water supply plane of a four point tap of 11.5mmand formulated standard pipe sizes such as 12.7mm, 19.05mm, 25.4mm, 31.75mm. , and 50.8 mm. The advantage of this standard system is that it saves materials without affecting the water supply function.

We can find the basis for it from the comparison of water supply levels: a quarter of a copper or lead pipe with a diameter of 12.7 mm, its standard wall thickness is 0.6mm, after removing its wall thickness. The water supply plane has a diameter of 11.5mm, which is exactly the size of the water supply plane of a four-point faucet. Therefore, a 12.7mm pipe is equipped with a four-point tap.